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WorksheetsChap_02
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
In the generation of circle by Bresenhan's algorithm, it is simple to generate
a)
All octants
b)
One octant first and others by successive reflection
c)
One octant first and others by successive translation
d)
One octant first and others by successive rotation
2.
Which of the following algorithms can be used for circle generation?
a)
Bresenham's algorithm
b)
Mid point
c)
both (a) & (b)
d)
none
3.
The value of initial decision parameter in bresenham’s line drawing algorithm is
a)
2∆y - ∆x
b)
2∆y +∆x
c)
2∆x - ∆y
d)
none
4.
The value of initial decision parameter in mid point circle drawing algorithm is:
a)
3-2r
b)
5/4-r
c)
1-2r
d)
3-r
5.
Pixel phasing is an anti-aliasing technique based on
a)
hardware
b)
software
c)
both hardware and Software
d)
none
6.
In Bresenham’s circle generating algoritms, if (x,y) is the current pixel position then the x-value of the next pixel position is…………………………..
a)
x-1
b)
x+1
c)
y+1
d)
y-1
7.
In Bresenham’s circle generating algoritms, if (x,y) is the current pixel position then the y-value of the next pixel position is…………………………..
a)
x+1
b)
x-1
c)
y+1
d)
y or y-1
8.
Run length coding is used for…………………
a)
Image Compression
b)
Image Smoothning
c)
Image Coloring
d)
Image Dithering
9.
Frame buffer is
a)
The memory area in which the image, being displayed, is stored
b)
The device which controls the refresh rate
c)
The device used for displaying the colors of an image
d)
The memory area in which the graphics package is stored
10.
Aliasing means ;
a)
Rendering effect
b)
Stair-case effect
c)
shading effect
d)
coloring effect
11.
DAC means
a)
Direct Access Coding
b)
Direct area clipping
c)
Digital to analog converter
d)
none
12.
A simple 3 bit plane can have ___________ no of intensity levels.
a)
7
b)
10
c)
8
d)
9
13.
The process of determining the suitable pixels for representing image or graphic object is called
a)
animation
b)
rasterization
c)
scan-conversion
d)
none
14.
Which one of the following is not an anti-aliasing technique?
a)
pixel phasing
b)
simple sampling
c)
increasing resoulution
d)
weighted area sampling
15.
A simple 3 -bit plane can have _______no of intensites
a)
7
b)
8
c)
9
d)
10
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